1. Geo-Thermal Resource Technologies Inc
Po Box 256, Elkton, SD 57026
Coordinate: 44.234985,-96.5011
Phone: (605) 542-3636
2. Geo-Thermal Resource Tech Inc
302 E Warehouse St, Elkton, SD 57026
Coordinate: 44.23779,-96.47654
Phone: (605) 692-9069